Assuming you are talking about Sportsnet Vancouver Hockey (it would be great if you used names, not just channel numbers), then that's simply because it shares its feed with one of the NHLHD channels. All you were seeing is a couple games from NHL Centre Ice. Once the Centre Ice free preview is over on Sunday, any games not involving the Canucks on SN-Vancouver will be blacked out for you, unless you subscribe to Centre Ice. In that case just watch the games on the Centre Ice channels, where guide actually shows you what games are on.